Agave americana is a large succulent that can produce a flowering stem reaching about 7.5 m. It is native to the southern United States and Mexico. Plant it in full sun on sandy or loamy, well-drained soil; it will tolerate moist but well-drained conditions. Wear gloves and other protective equipment when handling, and keep away from pets as it is harmful if eaten.

Century plant (Agave americana) is a full-sun succulent from the southern US and Mexico that flowers July to September and can reach 7.5 m.

https://en.wikipedia.org/wiki/Agave_americana

Agave is a genus of monocots native to the arid regions of the Americas. The genus is primarily known for its succulent and xerophytic species that typically form large rosettes of strong, fleshy leaves.

Agave americana

Century Plant (Agave americana) | Tall Flowering Succulent

Asparagus officinalis is a perennial vegetable grown for its edible young shoots. It has evergreen foliage and suits a full-sun, south-facing site. Give each crown about 1 m of room in sandy, loamy or clay soil that is moist but well‑drained with a pH of 6.5–7.5. Wear gloves when picking spears because contact may cause a skin allergy, and do not eat the fruit.

Common asparagus (Asparagus officinalis) is a perennial vegetable grown for edible shoots and suits a south-facing, full-sun spot with well-drained soil.

Asparagus or garden asparagus is a perennial flowering plant species in the genus Asparagus native to Eurasia. Widely cultivated as a vegetable crop, its young shoots are used as a spring vegetable.

Asparagus officinalis

Common Asparagus (Asparagus officinalis) | Edible perennial

Beschorneria yuccoides is a succulent, commonly called yucca-leaved beschorneria, notable for its yucca-like, strap-shaped leaves. Native to Mexico, it flowers between July and September. It grows best in full sun or partial shade on well-drained soil and tolerates dry to moderate soil moisture. Position it where the soil drains freely and the plant receives a sunny aspect.

Yucca-leaved Beschorneria (Beschorneria yuccoides) is a succulent from Mexico that flowers July to September and prefers full sun with well-drained soil.

https://en.wikipedia.org/wiki/Beschorneria_yuccoides

Beschorneria is a genus of succulent plants belonging to the family Asparagaceae, subfamily Agavoideae, native to semi-arid areas of Mexico and Central America. They are generally large evergreen perennials forming clumps of grey-green leaves, with tall flower-spikes to 1.5 metres (4.9 ft).

Beschorneria yuccoides

Yucca-leaved Beschorneria (Beschorneria yuccoides)

Camassia leichtlinii is a perennial bulbous plant that flowers in May to June. Native to western North America, it is also known by the common name Quamash. Plants prefer full sun and a moist but well-drained soil and are rated H7 (fully hardy) for UK gardens. The bulbs are ornamental and should not be eaten; wear gloves when handling.

Camassia leichtlinii (Camass Caerulea Group) is a bulbous perennial from western North America that flowers in May to June.

https://en.wikipedia.org/wiki/Camassia_leichtlinii

Camassia is a genus of plants in the asparagus family native to North America. Common names include camas, quamash, Indian hyacinth, camash, and wild hyacinth.

Camassia leichtlinii

Camass Caerulea Group (Camassia leichtlinii) | Bulbous

Camassia leichtlinii 'Atroviolacea' is a perennial in the Camassia genus that flowers in May to June. It favours a sunny position and performs best where soil remains moist but well-drained. The plant tolerates a wide range of soil textures, from sandy to clay. It is native to western North America and is fully hardy in the UK.

Great Camas Camassia leichtlinii 'Atroviolacea' flowers in May to June and prefers full sun with moist, well-drained sandy to clay soils.

Camassia leichtlinii 'Atroviolacea'

Great Camas (Camassia leichtlinii 'Atroviolacea') | May-June

Camassia leichtlinii 'Eve Price' is a perennial (commonly called Quamash) valued for its concentrated spring flowering. It blooms in May to June and prefers a sunny, open site. Plants do best in soils that remain moist but are not waterlogged. It is fully hardy in the UK (H7).

Camassia leichtlinii 'Eve Price' (Great Camas) is a spring-flowering perennial that blooms May to June and prefers full sun with moist, well-drained soil.

Camassia leichtlinii 'Eve Price'

Great Camas (Camassia leichtlinii 'Eve Price')

Quamash (Camassia leichtlinii 'Orion') is a perennial of the genus Camassia that flowers in May to June. It prefers full sun and a moist but well-drained soil, tolerating sandy, loamy or clay textures. Rated H7, it is fully hardy in UK gardens and corresponds to USDA zones 3–7. Native to western North America, it suits sunny, moisture-retentive sites in borders or naturalised groups.

Quamash (Camassia leichtlinii 'Orion') flowers in May to June and favours full sun in moist, well-drained sandy to clay soils.

Camassia leichtlinii 'Orion'

Quamash (Camassia leichtlinii 'Orion') | May-June Blooms

Camassia leichtlinii 'Plena' is a spring-flowering perennial that blooms in May–June. It favours full sun and soils that are moist but well-drained, from sandy to clay types. Native to western North America, it is fully hardy in the UK (H7, USDA 3–7).

Quamash (Camassia leichtlinii 'Plena') flowers in May–June and prefers full sun in moist, well-drained sandy to clay soils.

Camassia leichtlinii 'Plena'

Quamash (Camassia leichtlinii 'Plena') | May–June

Camassia leichtlinii var. suksdorfii is a herbaceous perennial bulb in the genus Camassia that flowers in May to June. It favours full sun and moist but well-drained soils across sandy, loamy and clay types. The plant is fully hardy in the UK (H7; USDA 3–7). Handle the ornamental bulbs with care as they are not to be eaten and should be handled with gloves, keeping them away from pets.

Quamash (Camassia leichtlinii var. suksdorfii) blooms May to June in full sun on moist, well‑drained soils and its bulbs are ornamental only.

Camassia leichtlinii var. suksdorfii

Camassia leichtlinii var. suksdorfii | Quamash

Chlorophytum bowkeri is a South African species of Chlorophytum that produces a rosette of long, slender leaves and summer flower stalks. It bears small, usually white flowers in the UK between June and August. The plant develops fleshy, tuberous roots that store water and nutrients. In cultivation it is often grown in containers or in sheltered spots that avoid hard frost.

Chlorophytum bowkeri is a South African Chlorophytum that flowers from June to August and bears small white blooms.

Chlorophytum (,), sometimes colloquially referred to as the spider plants, is a genus of almost 200 species of evergreen perennial flowering plants in the Agavoideae within the Asparagaceae. The plants are native to the tropical and subtropical regions of Africa, Australia, and Asia.

Chlorophytum bowkeri

Spider Plant (Chlorophytum bowkeri) | South African

Convallaria majalis is a herbaceous perennial known for a low habit and a strong floral scent from its spring flowers. It reaches about 0.2 m and is used as a spreading ground cover in shady situations. Flowering occurs in April to May and the blooms are highly fragrant. All parts are toxic if eaten, so wear gloves and other protective equipment when handling and keep away from pets.

Lily of the valley (Convallaria majalis) produces fragrant flowers in April to May and makes a low, spreading ground cover for shaded and woodland areas.

https://en.wikipedia.org/wiki/Lily_of_the_valley

Lilium is a genus of herbaceous flowering plants growing from bulbs, all with large and often prominent flowers. Lilies are a group of flowering plants which are important in culture and literature in much of the world.

Convallaria majalis

Lily Of The Valley (Convallaria majalis) | Scented Spring

Convallaria majalis 'Fortin's Giant' is a perennial Lily-of-the-valley that produces sweetly scented, pendent white bell flowers in April to May. It reaches about 0.2 m in height and tolerates locations from full sun to full shade. It grows in sandy, loamy or clay soils that range from well-drained to wet and is fully hardy (H7). All parts of the plant are toxic if ingested.

Lily-of-the-valley Convallaria majalis 'Fortin's Giant' bears sweetly scented white bells in April–May and suits full sun to full shade in moist to.

Convallaria majalis 'Fortin's Giant'

Lily-of-the-valley (Convallaria majalis 'Fortin's Giant')

Convallaria majalis 'Hardwick Hall' is a perennial notable for its sweetly scented spring flowers. It grows to about 0.2 m and blooms in April to May. The cultivar performs in full sun through full shade and accepts sandy, loamy or clay soils that range from well-drained to wet. All parts are toxic, so avoid placing it where children or pets might ingest foliage or flowers.

Lily-of-the-valley Convallaria majalis 'Hardwick Hall' bears sweetly scented spring flowers in April to May and grows to about 0.2 m.

Convallaria majalis 'Hardwick Hall'

Lily-of-the-valley (Convallaria majalis 'Hardwick Hall')

Convallaria majalis 'Prolificans' is a perennial ground cover that produces pendent, scented clusters of white, bell-shaped flowers in April to May. Plants stay low to the ground, reaching about 0.2 m high, and spread by underground stems to form colonies. It tolerates a wide range of light from full sun to full shade and suits soils from sandy to clay provided they remain at least moist. All parts are toxic if eaten; wear gloves when handling and follow HTA guidance on plants harmful to pets.

Convallaria majalis 'Prolificans' produces fragrant white bell flowers in April to May and suits positions from full sun to full shade in moist to.

Convallaria majalis 'Prolificans'

Convallaria majalis 'Prolificans' | Lily of the Valley

Convallaria majalis 'Rosea' is a low-growing perennial known for its strongly scented spring flowers. It reaches about 0.2 m and forms a carpet of leaves topped by nodding, fragrant blooms in April to May. It will grow in full sun through to full shade and suits sandy, loamy or clay soils from well-drained to wet. Wear gloves when handling as it is toxic if eaten and poisonous to pets.

Rosy lily of the valley (Convallaria majalis 'Rosea') is a fully hardy, low-growing perennial that produces scented flowers in April to May.

Convallaria majalis 'Rosea'

Rosy Lily of the Valley (Convallaria majalis 'Rosea')

A perennial ground cover with variegated leaves and sweetly scented, pendent white bell flowers. Convallaria majalis 'Variegata' or 'Lineata' reaches about 0.2 m and flowers in spring. It tolerates a wide range of soils from sandy to clay and grows in full sun through to full shade. All parts are toxic, so site with care around children and pets.

Variegated Lily-of-the-valley (Convallaria majalis 'Variegata' or 'Lineata') is a fully hardy, sweetly scented spring-flowering ground cover for sun or.

Convallaria majalis 'Variegata' or 'Lineata'

Variegated Lily-of-the-valley | Spring-scented ground cover

Endymion hispanicus is a bulbous perennial from the Iberian Peninsula noted for a mild fragrance. It grows from bulbs and suits partial shade through to full sun. Plant in well-drained soil that remains reasonably moist and it tolerates average UK winters (H4). Place in borders, woodland gardens or allow to naturalise where space permits.

Spanish bluebell Endymion hispanicus is a bulbous perennial from the Iberian Peninsula that prefers partial shade and well‑drained, moist soil and is.

https://en.wikipedia.org/wiki/Hyacinthoides_hispanica

Hyacinthoides is a genus of flowering plants in the family Asparagaceae, known as bluebells.

Endymion hispanicus

Spanish bluebell (Endymion hispanicus) | Woodland bulb

Endymion non-scriptus is a bulbous perennial native to the British Isles and the north-western Iberian Peninsula, commonly called the Common Bluebell. It produces sweetly fragrant flowers and a basal clump of leaves. The plant prefers moist, well-drained loamy soil in partial shade to shade and suits sheltered sites facing north, east or west. It is well suited to naturalising in woodland gardens or forming ground cover in shaded borders.

Common Bluebell Endymion non-scriptus favours moist, well-drained loamy soil in partial shade and is noted for its sweet fragrance.

https://en.wikipedia.org/wiki/Hyacinthoides_non-scripta

Endymion non-scriptus

Common Bluebell (Endymion non-scriptus) | Woodland bulb

Eucomis bicolor is a bulbous perennial known by the common name two‑coloured pineapple lily and grown for its pineapple‑like flower head. In the UK it flowers in July to August. It suits full sun or partial shade on well‑drained sandy or loamy soil with neutral to slightly acidic or slightly alkaline pH and moderate moisture. Rated H5, it is classed as hardy for much of the UK and is used in borders, containers and rock gardens.

Two-coloured pineapple lily (Eucomis bicolor) is a bulbous perennial that flowers July to August and suits full sun or partial shade in well-drained soil.

https://en.wikipedia.org/wiki/Eucomis_bicolor

Eucomis is a genus of flowering plants in the family Asparagaceae, subfamily Scilloideae, native to southern Africa. Most species of this genus are commonly referred to as pineapple flowers or pineapple lilies.

Eucomis bicolor

Two-coloured pineapple lily (Eucomis bicolor) | Bulbous

Eucomis bicolor 'Alba' is a bulbous perennial in the genus Eucomis prized for its summer flower spikes. It flowers in the UK from July to August. Plant in full sun or partial shade on fertile, well-drained soil that is neutral to slightly acidic and kept moist but not waterlogged. Give it a sheltered position where it can be used in borders, containers or rock gardens.

Two-Coloured Pineapple Lily 'Alba' (Eucomis bicolor 'Alba') flowers in the UK from July to August and suits borders, containers and rock gardens.

Eucomis bicolor 'Alba'

Two-Coloured Pineapple Lily 'Alba' (Eucomis bicolor 'Alba')

Eucomis pallidiflora is a bulbous perennial that produces dramatic summer flower spikes topped by a pineapple-like tuft of leaf‑like bracts. The individual flowers range from white to green and open in July to August. It prefers moist, well‑drained soil in full sun or partial shade. Hardy to H4, it will tolerate most UK winters but can suffer where frosts are severe.

Giant pineapple lily Eucomis pallidiflora flowers July to August and prefers moist, well‑drained soil in full sun or partial shade.

https://en.wikipedia.org/wiki/Eucomis_pallidiflora

Eucomis pallidiflora

Giant pineapple lily (Eucomis pallidiflora) | Summer spikes

Eucomis punctata is a bulbous perennial in the genus Eucomis, native to South Africa and grown for its summer flowering. In the UK it blooms in July to August. It prefers full sun or partial shade and a well-drained soil kept at a moderate moisture level. Used as an ornamental, it suits planting in borders or in containers for summer display.

Eucomis punctata is a South African bulbous perennial that flowers in July to August and prefers full sun or partial shade in well-drained soil.

https://en.wikipedia.org/wiki/Eucomis_comosa

Eucomis punctata

Eucomis punctata | Summer-flowering bulbous perennial

Eucomis punctata striata is a South African member of the genus Eucomis that produces a summer flowering display in the UK from July to August. It is grown for its summer blooms rather than foliage. Planting choices should highlight the flowering period. Expect the main ornamental interest to be the July–August flowers.

Eucomis punctata striata is a South African Eucomis that flowers in the UK from July to August.

Eucomis punctata striata

Eucomis punctata striata | Summer-flowering Eucomis

Funkia is a genus of herbaceous perennial plants valued for its foliage and noted for shade tolerance. Plants grow from rhizomes and form clumps whose leaves range from very small to large, lanceolate or ovate in shape. Cultivars amplify this natural variation so gardeners choose forms for leaf size and texture. The foliage is usually the principal feature in cultivation.

Funkia (Hosta) is a genus of herbaceous perennials grown for shade-tolerant foliage and clump-forming rhizomes.

Hosta is a genus of plants commonly known as hostas, plantain lilies and occasionally by the Japanese name gibōshi. Hostas are widely cultivated as shade-tolerant foliage plants.

Funkia

Hosta (Funkia) | Shade-tolerant foliage

Ornithogalum candicans, known as the summer hyacinth, is a species of flowering plant in the family Asparagaceae, native to moist grassland in South Africa. It is a bulbous perennial growing to 100–120 cm (39–47 in), with strap-shaped leaves and white snowdrop-like flowers in late summer.

https://en.wikipedia.org/wiki/Ornithogalum_candicans

Ornithogalum is a genus of perennial plants mostly native to southern Europe and southern Africa belonging to the family Asparagaceae. Some species are native to other areas such as the Caucasus.

Galtonia candicans

Galtonia princeps is a bulbous perennial that produces fragrant summer flowers in July to August. Native to South Africa, it suits full sun to partial shade and prefers well-drained, fertile soil. It tolerates neutral to slightly acidic or slightly alkaline soils and is rated H5 (hardy) for UK conditions. Use it in borders, containers or as a source of cut flowers.

Summer hyacinth (Galtonia princeps) blooms July to August and is a fragrant, hardy bulbous perennial for borders, containers and cut flowers.

Galtonia is a genus of plants in the family Asparagaceae, subfamily Scilloideae. Native to Southern Africa, the genus is named after Sir Francis Galton.

Galtonia princeps

Summer Hyacinth (Galtonia princeps) | Summer Bulb

Ophiopogon (lilyturf) is a genus of evergreen perennial plants native to warm temperate to tropical East, Southeast, and South Asia. Despite their grasslike appearance, they are not closely related to the true grasses, the Poaceae.

Ophiopogon

Ornithogalum nutans is a bulbous perennial notable for its nodding flower stems and compact habit, reaching 0.2–0.6 metres. It flowers in the UK from April to June. Native to Bulgaria, Greece and Turkey, it prefers well-drained, sandy or loamy soils in full sun or partial shade. All parts are harmful if eaten and it is toxic to pets, so wear gloves when handling.

Drooping Star of Bethlehem (Ornithogalum nutans) is a bulbous perennial flowering April to June, suited to rock gardens, borders and naturalising in grass.

https://en.wikipedia.org/wiki/Ornithogalum_nutans

Ornithogalum nutans

Drooping Star of Bethlehem (Ornithogalum nutans)

Ornithogalum pyramidale is a bulbous perennial that produces clusters of star-shaped, white flowers often marked with a green stripe. It originates from the Mediterranean region and grows from a bulb with linear basal leaves and a slender flowering stalk. Plants suit a position in full sun or partial shade and prefer well-drained soil kept at a moderate moisture level. Flowering occurs in April to June, offering a compact spring-to-early-summer display.

Stars of Hungary (Ornithogalum pyramidale) produces white, star-shaped flowers in April to June and suits rock gardens, borders and containers.

Ornithogalum pyramidale

Stars of Hungary (Ornithogalum pyramidale) | Spring bulb

Ornithogalum pyrenaicum, also called Prussian asparagus, wild asparagus, Bath asparagus, Pyrenees star of Bethlehem, or spiked star of Bethlehem, is a plant whose young flower shoots may be eaten as a vegetable, similar to asparagus.

https://en.wikipedia.org/wiki/Ornithogalum_pyrenaicum

Ornithogalum pyrenaicum

Paradisea liliastrum is a perennial that bears scented white flowers in May to June. It originates from the Pyrenees, Alps and Apennines. Plant in full sun or partial shade on moist, well-drained loamy soil with a neutral to alkaline pH; rated H7 (fully hardy) for UK conditions.

St Bruno's lily (Paradisea liliastrum) bears scented white flowers in May to June and prefers moist, well-drained loamy soil in sun or partial shade.

https://en.wikipedia.org/wiki/Paradisea_liliastrum

Paradisea is a European genus of flowering plants in the family Asparagaceae. It was formerly classified in the family Anthericaceae or earlier in the Liliaceae.

Paradisea liliastrum

St Bruno's lily (Paradisea liliastrum) | May-June blooms

Paradisea lusitanica is a perennial from Portugal and Spain that produces fragrant flowers in May to June. It prefers a position in full sun to partial shade and suits moist, well-drained soil. In a UK garden it works well in borders where its late-spring scent can be enjoyed close to paths or seating.

Portuguese Paradisea (Paradisea lusitanica) is a perennial that bears fragrant flowers in May to June and prefers full sun to partial shade with moist.

Paradisea lusitanica

Portuguese Paradisea (Paradisea lusitanica) | Spring

Scilla peruviana is a bulbous perennial that flowers in March to April, bringing a strong spring presence from each bulb. Native to the Mediterranean, it prefers well-drained sandy or loamy soils in full sun or partial shade. It suits south-facing, sheltered positions and is rated H5 (hardy) for UK conditions. Bulbs are ornamental and must not be eaten, so wear gloves when handling.

Portuguese squill (Scilla peruviana) is a Mediterranean bulbous perennial that flowers in March to April and prefers well-drained, sunny to partly shaded.

https://en.wikipedia.org/wiki/Scilla_peruviana

Scilla is a genus of about 30 to 80 species of bulb-forming perennial herbaceous plants in the family Asparagaceae, subfamily Scilloideae. Sometimes called the squills in English, they are native to woodlands, subalpine meadows, and seashores throughout Europe, Africa and the Middle East.

Scilla peruviana

Portuguese squill (Scilla peruviana) | Spring bulb

Veltheimia bracteata is a bulbous perennial noted for pendant clusters of late-summer flowers. In the UK it blooms from August to October. The species originates from the Cape of South Africa and performs best in full sun or partial shade on well-drained, sandy or loamy soil. It suits ornamental planting and containers where its flowering period can be appreciated.

Forest lily (Veltheimia bracteata) blooms August to October and suits sunny, well-drained sites or containers in many UK gardens.

https://en.wikipedia.org/wiki/Veltheimia_bracteata

Veltheimia is a genus of perennial plants native to the Cape Provinces of South Africa in the family Asparagaceae, subfamily Scilloideae. It was named in honour of August Ferdinand von Veltheim (1741–1801), a German patron of botany.

Veltheimia bracteata

Forest Lily (Veltheimia bracteata) | Late summer flowers

Veltheimia capensis is a bulbous perennial that bears pendent racemes of tubular flowers above a rosette of blue-green leaves. It reaches about 0.46 metres in height and originates from the northern and western Cape of South Africa. Flowers appear from August to October in the UK. Plants prefer a sheltered south-facing spot in well-drained soil.

Sand lily Veltheimia capensis is a bulbous perennial that flowers August to October and suits sheltered, south-facing, well-drained sites.

https://en.wikipedia.org/wiki/Veltheimia_capensis

Veltheimia capensis

Sand Lily (Veltheimia capensis) | August–October blooms

Yucca elata is a perennial plant, with common names that include soaptree, soaptree yucca, soapweed, and palmella. It is native to southwestern North America, in the Sonoran Desert and Chihuahuan Desert in the United States, southern Nevada, southwestern Utah, and northern Mexico.

https://en.wikipedia.org/wiki/Yucca_elata

Yucca is both the scientific name and common name for a genus native to North America from Panama to southern Canada. It contains 50 accepted species.

Yucca elata

Yucca filamentosa is an evergreen shrub forming a low clump of stiff, strap-shaped, blue-green leaves and producing upright flower stems with pendulous cream blooms. Plants commonly reach about 1.2 m. It prefers full sun and well-drained soil and flowers in June to August. The leaves can cause skin irritation, so wear gloves and keep pets from eating the foliage.

Needle Palm (Yucca filamentosa) is an evergreen yucca with blue-green leaves and cream flowers in June to August.

https://en.wikipedia.org/wiki/Yucca_filamentosa

Yucca filamentosa

Needle Palm (Yucca filamentosa) | Evergreen Yucca

Yucca filamentosa 'Elegantissima' is an evergreen shrub with stiff, strappy leaves edged by fine white filaments and a compact 1.2 m mature height. It produces upright stalks of pendulous cream flowers in June to August. The foliage has a blue‑green tone that holds through the year. Plants tend to form clumps by means of basal shoots.

Adam's Needle (Yucca filamentosa 'Elegantissima') has blue‑green, filament‑edged leaves and bears cream flowers in June to August.

Yucca filamentosa 'Elegantissima'

Adam's Needle (Yucca filamentosa 'Elegantissima')

Yucca filamentosa 'Rosenglocke' is an evergreen perennial that forms a clump to about 1.2 m and produces upright flower spikes in June to August. It is native to the southeastern United States and favours a sunny position. Plant in well-drained sandy, loamy or clay soils and avoid prolonged waterlogging. Flower spikes carry cream blooms above the foliage.

Yucca filamentosa 'Rosenglocke' (Adam's needle) is an evergreen perennial to 1.2 m that flowers June to August and favours full sun and well-drained soil.

Yucca filamentosa 'Rosenglocke'

Adam's Needle (Yucca filamentosa 'Rosenglocke') | Sun

Yucca filamentosa, Adam's needle and thread, is a species of flowering plant in the family Asparagaceae native to the southeastern United States. Growing to 3 metres tall, it is an evergreen shrub valued in horticulture.

Yucca filamentosa 'Schneefichte'

Yucca filamentosa 'Variegata' is an evergreen shrub distinguished by its sword-like, variegated leaves that form a compact, architectural clump. It typically grows to about 1.2 m and sends up tall flower stems in June to August. The bloom display comprises cream, pendant flowers. Leaves show thin, filamentous edges that add texture at close range.

Variegated Adam's Needle (Yucca filamentosa 'Variegata') is a fully hardy, full-sun evergreen with variegated leaves and cream flowers June to August.

Yucca filamentosa 'Variegata'

Variegated Adam's Needle (Yucca filamentosa 'Variegata')

Yucca filamentosa var. concava is an evergreen shrub that favours full sun and well-drained soil. It grows to about 1.2 m and retains a compact, upright habit. Flower spikes appear in summer and carry cream blooms from June to August. Handle with care: foliage can be a skin allergen and is harmful to pets if eaten.

Needle Palm (Yucca filamentosa var. concava) prefers full sun in well-drained soil and flowers June to August.

Yucca filamentosa var. concava

Needle Palm (Yucca filamentosa var. concava) | Rock garden

Yucca flaccida is a perennial yucca known for its summer display of creamy-white flowers. It prefers full sun and very well-drained, sandy or rocky soils and accepts dry to medium moisture levels. Native to south-central and southeastern North America, it suits planted positions where drainage and exposure are good. Use it in rock gardens, xeriscaping or as a structural border plant.

Adam's needle (Yucca flaccida) is a perennial yucca with creamy-white summer flowers, suited to sunny, well-drained sandy or rocky sites.

https://en.wikipedia.org/wiki/Yucca_flaccida

Yucca flaccida

Adam's needle (Yucca flaccida) | Rock garden yucca

Yucca flaccida 'Ivory' is a perennial, evergreen yucca traded as Needle Palm 'Ivory'. It suits well-drained sandy or loamy soils and tolerates dry to medium moisture. Position it in full sun or partial shade; its UK hardiness is H5 (hardy). It flowers from June to August.

Needle Palm 'Ivory' (Yucca flaccida 'Ivory') is an evergreen perennial that prefers well-drained, sandy soils and flowers from June to August.

Yucca flaccida 'Ivory'

Needle Palm 'Ivory' (Yucca flaccida 'Ivory') | Evergreen

Yucca flaccida, commonly called Adam's needle or weak-leaf yucca, is a species of flowering plant in the asparagus family (Asparagaceae). It is native to south-central and southeastern North America, from the lower Great Plains eastward to the Atlantic seaboard in Virginia, south through Florida and the Gulf states.

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